Boeing XAT-15

The Boeing AT-15 was a twin-engined American trainer meant to teach bomber crews to work together as a team before joining an operational unit. It came from the Wichita Division, the former Stearman Aircraft Company, which Boeing took over in 1939, and the company called it the X-120. It was a high-wing monoplane with two wing-mounted Pratt and Whitney R-1340 Wasp radial engines, a retractable tailwheel undercarriage and a glazed nose for the trainee bomb-aimer. Because of material shortages it was built of welded steel tube covered in plywood, with wooden wings and tail. Two prototypes, designated XAT-15, were ordered in May 1941 and the first flew on 9 April 1942. The planned order of more than 1,000 was cancelled after the United States entered the Second World War.